Environmental Engineering in CE
Sooty and sulphurous smog formed due to combustion of fossil fuels particularly in winter, continues throughout the day and night. When the moist atmospheric air's water vapor condenses on the solid particles of smoke thereby forming smog (smoke + fog), it causes

All of these
Irritation in eyes
Respiratory trouble
Poor visibility due to sky darkening

ANSWER DOWNLOAD EXAMIANS APP

Environmental Engineering in CE
Bacterial aerobic oxidation of polluted water in biological oxidation ponds is done to purify it. Presence of bacteria helps in

Coagulation and flocculation of colloids
Nitrification or oxidation of ammonia derived from breakdown of nitrogeneous organic matter to the nitrite and eventually to the nitrate
Oxidation of carbonaceous matter to CO₂
All of these

ANSWER DOWNLOAD EXAMIANS APP